7SR210 & 7SR220 Description of Operation
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3.17 Power Protection: Power (32) – 7SR22
Two under/over power elements are provided and can measure real, reactive or apparent power.
Gn 32-n Setting
sets the pick-up power level for the element.
Under-power or over-power operation can be set by the
Gn 32-n Operation
setting.
Gn 32-n 1ph/3ph Power allows the settings to be based on any one phase exceeding the power pick up level or
on the total power of all three phases.
An output is given after elapse of the
Gn 32-n Delay
setting.
Operation of the under/over power elements can be inhibited when:
The measured current is below the
Gn 32-n U/C Guard
setting
A VT Fail condition is detected
Inhibit 32-n
A binary or virtual input.
V
1
I
L1
V
2
V
3
I
L3
I
L2
&
Enabled
Enabled
<
&
<
<
&
En.
Inhibit
VT Fail
&
+W
-VAr
-W
-VAr
-W
+VAr
+W
+VAr
Gn32: Operation: Under/Over
Gn 32-n U/C Guard
Setting
Gn 32-n Delay
Gn32: 1ph/3ph Power
Gn32: Power: P, Q, R
Gn32: Direction
Gn32: Setting
Gn 32-n U/C
Guarded
Gn 32-n VTS
Action
Gn 32-n Element
32-n
General Pickup
Inhibit 32-n
Figure 3.17-1 Logic Diagram: Power Protection (32)
Summary of Contents for Argus 7SR21
Page 1: ...Energy Management 7SR21 7SR22 Argus Overcurrent Relay Reyrolle Protection Devices ...
Page 2: ......
Page 4: ...Contents 7SR11 and 7SR12 Page 2 of 2 2018 Siemens Protection Devices Limited ...
Page 185: ...7SR210 Settings Guide Unrestricted 2018 Siemens Protection Devices Limited Page 61 of 61 ...
Page 277: ...7SR220 Settings Guide Unrestricted Page 72 of 107 2013 Siemens Protection Devices Limited ...
Page 382: ...7SR220 Technical Manual Chapter 4 Page 2 of 96 2017 Siemens Protection Devices Limited ...
Page 386: ...7SR220 Technical Manual Chapter 4 Page 6 of 96 2017 Siemens Protection Devices Limited ...
Page 398: ...7SR220 Technical Manual Chapter 4 Page 18 of 96 2017 Siemens Protection Devices Limited ...
Page 414: ...7SR220 Technical Manual Chapter 4 Page 34 of 96 2017 Siemens Protection Devices Limited ...
Page 466: ...7SR220 Technical Manual Chapter 4 Page 86 of 96 2017 Siemens Protection Devices Limited ...
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